How to send a batch events?

[snowwolf007cn]

I don't find any example of using the ApplicationCloudEventsBatchJSON format to send a batch event, can anyone provide me an example?

[n3wscott]

to be honest, I still don't know. I filed cloudevents/spec#414 to try to understand the processing model for the sdk but was not able to get a real answer.

What are you trying to do? maybe it is time to add it.

[snowwolf007cn]

while we initialize a new customer to our system, we need to sync the data from their system. It'll generator billions of historic operation events. so we need to batch the job and send batch events and broadcast to other internal systems to process the customer initialize the process. Otherwise, other systems have to receive the events one by one, and the downstream have to initialize a lot of connections to handle the request, it'll be a disater.

[embano1]

So just to understand this:

• The SPEC defines the format
• The SDK currently does not support batching?

[n3wscott]

The go sdk does not support batching because I don't understand how to support it at the client layer, and the spec does not want to define what the client layer should do. I am in a pickle.

I could make the sdk support creating them but I really don't know what to do on the go-sdk client receive side (from the perspective of the client).

[markmandel]

In case anyone comes looking, just merged:

• http: Batch Events from HTTP Request and Response #829

To allow you to send and receive batched HTTP events via standard http.Request and http.Response objects.

That should help unblock this use case.

[sagikazarmark]

Is there an issue tracking native support in the client for this?

[duglin]

@sagikazarmark does #829 meet your needs?
@markmandel any reason we need to keep this issue open?

[markmandel]

@markmandel any reason we need to keep this issue open?

The only reason I can come up with to keep this open, is that you would like to have batch support in https://pkg.go.dev/github.com/cloudevents/sdk-go#Client ?

[sagikazarmark]

That's exactly what I meant above.